CN216033390U

CN216033390U - Multimedia display device for middle-position mathematics

Info

Publication number: CN216033390U
Application number: CN202121066210.2U
Authority: CN
Inventors: 王伟锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2022-03-15
Anticipated expiration: 2031-05-19

Abstract

The application discloses multimedia display device for middle-position mathematics, including show board, auxiliary structure, regulation structure and protective structure, show inboard inside is fixed with the display screen. Can carry out the writing on blackboard through the clipboard in the show process, and when the teaching space has the limit, can only open the clipboard of one side, perhaps accomodate the clipboard to placing incasement portion, the practicality of show board has been improved, through adjusting loop bar and supporting baseplate cooperation, the convenience is highly adjusted the show board, machine and simple structure are laborsaving, the problem that current show board regulation structure is comparatively loaded down with trivial details when using has been solved, it is more convenient to make the show board add man-hour, shelter from the protection through protection cloth to the display screen, avoid the display screen to damage when not using or transporting, and through second spring and axis of rotation cooperation, can accomodate protection cloth fixedly, avoid protection cloth to influence the normal use of display screen.

Description

Multimedia display device for middle-position mathematics

Technical Field

The application relates to a display device, in particular to a multimedia display device for middle-position mathematics.

Background

Along with the gradual development of teaching equipment, more and more schools are displayed by adopting a multimedia display screen, a plurality of mathematical three-dimensional models can be displayed, and the teaching effect is effectively improved.

Part traditional teaching is with multimedia display device, in order to reduce occupation of land space, only can demonstrate through the multimedia, the mr when giving lessons, can't carry out the blackboard-writing according to classroom teaching content, and part multimedia display device is when using, and both sides are provided with the clipboard, also can carry out the blackboard-writing when the show, but its use in the less classroom in space has reduced display device's practicality.

Many display device are for adapting to the mr of co-altitude not, and its bottom all is provided with the altitude mixture control structure, but because many display device's altitude mixture control structure is comparatively loaded down with trivial details, inconvenient, the processing is inconvenient during the operation, and partial display device is when not using for a long time, because display device does not possess protective structure, the surface can fall full of the dust, also takes place the fish tail easily when removing the transportation. Therefore, a multimedia presentation apparatus for middle-position mathematics is proposed to solve the above problems.

Disclosure of Invention

A multimedia display device for middle-position mathematics comprises a display board, an auxiliary structure, an adjusting structure and a protective structure, wherein a display screen is fixed inside the display board;

the auxiliary structure comprises a writing board, a placing box is fixed on the rear side of the display board, the writing boards are symmetrically and slidably arranged in the placing box, two sides of the placing box are both provided with movable grooves matched with the writing boards, limiting plates are fixed at the writing board ends in the placing box, the rear sides of the two limiting plates are clamped with limiting blocks, connecting pull rods are fixed at the rear ends of the two limiting blocks and extend to the outer side of the placing box, and first springs are symmetrically fixed between the limiting blocks and the rear side in the placing box;

the adjusting structure comprises a supporting bottom plate, an adjusting loop bar is fixed at the bottom end of the display plate, an adjusting screw rod is connected inside the bottom end of the adjusting loop bar through a thread groove, and the supporting bottom plate is fixed at the bottom end of the adjusting screw rod;

protective structure includes protection cloth, show board front side one end is fixed with the receiver, and the receiver is inside to be connected with the axis of rotation through the bearing, the winding has protection cloth in the axis of rotation, and the one end that protection cloth extends to the receiver outside is fixed with the gag lever post, the symmetry is fixed with the fixed lantern ring on the gag lever post, the show board front side other end is fixed with the dead lever, all be fixed with the connecting plate in the axis of rotation of lower extreme on the protection cloth, all overlap in the axis of rotation between connecting plate and the receiver and be equipped with the second spring, and the second spring both ends all fix respectively on connecting plate and receiver.

Further, the arc draw groove has all been seted up to the one end that the clipboard extended to the placing box outside, the width of limiting plate all is less than the width in activity groove.

Furthermore, the limiting plate rear side all seted up with stopper complex draw-in groove, the stopper all sets up to horizontal "V" shape of placing.

Furthermore, the connecting pull rod is transversely arranged in a U shape, and the rear end of the placing box is provided with a moving hole matched with the connecting pull rod.

Furthermore, a handle is fixed on one side of the top end of the supporting bottom plate, a spongy cushion is glued on the outer surface of the handle, and a non-slip mat is glued on the bottom end of the supporting bottom plate.

The receiver side all seted up with protection cloth complex shifting chute, the length sum of receiver and stop lever is less than the length of display screen side to the side of show board.

Further, the overall length of the protective cloth is larger than that of the display board, and the height of the protective cloth is larger than that of the display screen.

Further, the length of stop lever is greater than the length of shifting chute, the length of stop lever is less than the length of receiver.

Furthermore, the fixing rods are all arranged in an L shape in a transverse mode, and the length of each fixing rod is smaller than the diameter of the corresponding fixing sleeve ring.

Further, the diameter width of connecting plate is less than the inside diameter width of receiver, the diameter width of connecting plate is greater than the diameter width of protection cloth.

The beneficial effect of this application is: the application provides a multimedia display device for middle-position mathematics.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a perspective view of a portion of an embodiment of the present application in use;

FIG. 3 is a schematic top view cross-section of a portion of an embodiment of the present application;

FIG. 4 is a schematic sectional front view of a portion of an embodiment of the present application;

FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to an embodiment of the present application;

fig. 6 is an enlarged schematic view of a structure at B in fig. 3 according to an embodiment of the present application.

In the figure: 1. show board, 2, the display screen, 3, place the case, 4, the clipboard, 5, oval kerve, 6, the activity groove, 7, the limiting plate, 8, the stopper, 9, first spring, 10, connect the pull rod, 11, adjust loop bar, 12, adjusting screw, 13, supporting baseplate, 14, slipmat, 15, the handle, 16, the receiver, 17, the axis of rotation, 18, protection cloth, 19, the gag lever post, 20, the fixed lantern ring, 21, the dead lever, 22, the connecting plate, 23, the second spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a multimedia display device for middle-aged mathematics includes a display board 1, an auxiliary structure, an adjusting structure and a protection structure, wherein a display screen 2 is fixed inside the display board 1;

the auxiliary structure comprises a writing board 4, a placing box 3 is fixed on the rear side of the display board 1, the writing board 4 is symmetrically arranged in the placing box 3 in a sliding mode, two sides of the placing box 3 are both provided with movable grooves 6 matched with the writing board 4, limiting plates 7 are fixed at the ends of the writing board 4 in the placing box 3, limiting blocks 8 are clamped at the rear sides of the two limiting plates 7, connecting pull rods 10 are fixed at the rear ends of the two limiting blocks 8, the connecting pull rods 10 extend to the outer side of the placing box 3, and first springs 9 are symmetrically fixed between the limiting blocks 8 and the rear sides in the placing box 3;

the adjusting structure comprises a supporting bottom plate 13, an adjusting loop bar 11 is fixed at the bottom end of the display board 1, an adjusting screw rod 12 is connected inside the bottom end of the adjusting loop bar 11 through a thread groove, and the supporting bottom plate 13 is fixed at the bottom end of the adjusting screw rod 12;

protective structure includes protection cloth 18, 1 front side one end of show board is fixed with receiver 16, and receiver 16 is inside to be connected with axis of rotation 17 through the bearing, the winding has protection cloth 18 in the axis of rotation 17, and the one end that protection cloth 18 extends to the receiver 16 outside is fixed with gag lever post 19, the symmetry is fixed with fixed lantern ring 20 on the gag lever post 19, the 1 front side other end of show board is fixed with dead lever 21, all be fixed with connecting plate 22 in the axis of rotation 17 of protection cloth 18 upper and lower extreme, all overlap on the axis of rotation 17 between connecting plate 22 and the receiver 16 and be equipped with second spring 23, and second spring 23 both ends are all fixed respectively on connecting plate 22 and receiver 16.

The arc-shaped pull grooves 5 are formed in the ends, extending to the outer side of the placing box 3, of the writing boards 4, the width of the limiting plates 7 is smaller than that of the movable grooves 6, the writing boards 4 are pulled through the arc-shaped pull grooves 5 more conveniently and more labor-saving, and the placing box 3 is prevented from being completely moved out of the placing box 3 due to the fact that the movable grooves 6 and the limiting plates 7 are matched for limiting; the rear side of the limiting plate 7 is provided with a clamping groove matched with the limiting block 8, the limiting blocks 8 are all arranged in a V shape which is transversely arranged, the limiting block 8 can be clamped and arranged at the rear side of the limiting plate 7, the limiting plate 7 is limited through the limiting block 8, and the writing board 4 can be accommodated in the placing box 3 and fixed; the connecting pull rods 10 are all transversely arranged in a U shape, and the rear end of the placing box 3 is provided with a moving hole matched with the connecting pull rod 10, so that the connecting pull rod 10 can be conveniently pulled when the writing board 4 is used; a handle 15 is fixed on one side of the top end of the supporting bottom plate 13, a spongy cushion is glued on the outer surface of the handle 15, a non-slip mat 14 is glued on the bottom end of the supporting bottom plate 13, and the supporting bottom plate 13 is fixed through the handle 15, so that the convenience and labor saving are realized; the side edges of the storage box 16 are provided with moving grooves matched with the protective cloth 18, the sum of the lengths of the storage box 16 and the limiting rod 19 is smaller than the length from the side edge of the display screen 2 to the side edge of the display board 1, so that the protective cloth 18 can be moved under the pulling of the limiting rod 19, the limiting rod 19 is prevented from moving into the storage box 16 under the pulling of the second spring 23, and the protective cloth 18 can be pulled repeatedly; the total length of the protective cloth 18 is greater than that of the display board 1, and the height of the protective cloth 18 is greater than that of the display screen 2, so that the protective cloth 18 can cover and protect the display screen 2, and dust accumulation or abrasion of the display screen 2 during storage or transportation is avoided; the length of the limiting rod 19 is greater than that of the moving groove, and the length of the limiting rod 19 is smaller than that of the storage box 16; the fixing rods 21 are all arranged in an L shape in a transverse direction, and the length of the fixing rods 21 is smaller than the diameter of the fixing lantern ring 20, so that the fixing lantern ring 20 can be hung on the connecting plate 22, and the opened protective cloth 18 can be fixed on the front side of the display screen 2; the diameter width of connecting plate 22 is less than the inside diameter width of receiver 16, and the diameter width of connecting plate 22 is greater than the diameter width of protection cloth 18, guarantees that connecting plate 22 can rotate under the pulling of protection cloth 18 and the cooperation of gag lever post 19.

When the blackboard writing device is used, when the height of the display board 1 needs to be adjusted, the supporting bottom board 13 is fixed by stepping on and pressing the holding rod 15, then the display board 1 is rotated to drive the adjusting sleeve rod 11 to rotate, the adjusting sleeve rod 11 moves on the adjusting screw rod 12 under the matching of threads, the height of the display board 1 can be adjusted, when the blackboard writing needs to be displayed, the connecting pull rod 10 is pulled firstly to drive the limiting block 8 to compress the first spring 9 to move towards the rear side, when the limiting block 8 is completely moved out of the clamping groove, the limiting of the limiting block 7 is relieved by the limiting block 8, the writing board 4 is pulled out from the placing box 3 through the arc-shaped pull groove 5, the blackboard writing can be performed, after the blackboard writing is completed, the connecting pull rod 10 is pulled again to push the writing board 4 to the placing box 3, so that the limiting block 7 is abutted against the placing box 3, the connecting pull rod 10 is loosened, at the moment, the limiting block 8 is abutted to the inside of the clamping groove under the pushing of the first spring 9, the limiting plate 7 can be limited and fixed through the limiting block 8, so that the writing board 4 is fixedly stored in the storage box 3, when the display board 1 is not used for a long time in a holiday, the limiting rod 19 is pulled through the fixing sleeve ring 20 to drive the protective cloth 18 fixed on the limiting rod 19 to be unfolded and simultaneously drive the rotating shaft 17 to rotate in the storage box 16, the rotating shaft 17 rotates to drive the connecting plate 22 to rotate, the second spring 23 is stretched while the connecting plate 22 rotates, when the display screen 2 is completely covered by the protective cloth 18, the fixing sleeve ring 20 is sleeved on the fixing rod 21, the protective cloth 18 can be fixed on the front side of the display screen 2, when the display screen 2 needs to be used again, the fixing sleeve ring 20 is taken down from the fixing rod 21, the limiting rod 19 is slowly loosened, the second spring 23 is under the action of restoring force, the rotating shaft 17 is pulled by the connecting plate 22 to rotate, so that the protective cloth 18 can be slowly wound on the rotating shaft 17, the limiting rod 19 abuts against the storage box 16, and the protective cloth 18 can be stored and fixed.

The application has the advantages that:

1. the blackboard writing device is simple in structure and convenient to operate, blackboard writing can be performed in the display process through the writing board 4, and when the teaching space is limited, only the writing board 4 on one side can be opened, or the writing board 4 is stored in the placing box 3, so that the practicability of the display board 1 is improved;

2. the display board 1 is reasonable in structure, the height of the display board 1 can be conveniently adjusted through the matching of the adjusting sleeve rod 11 and the supporting bottom plate 13, the machine is simple and labor-saving in structure, the problem that the adjusting structure of the existing display board 1 is complex when the display board is used is solved, and the display board 1 is more convenient to process;

3. this application is rational in infrastructure, shelters from the protection through protection cloth 18 to display screen 2, avoids display screen 2 to damage when not using or transporting, and through the cooperation of second spring 23 and axis of rotation 17, can accomodate protection cloth 18 fixedly, avoids protecting cloth 18 to influence the normal use of display screen 2.

Since the internal structure of the display screen belongs to the prior art, it is not described in this document.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a middle-position multimedia presentation device for mathematics which characterized in that: the display device comprises a display board (1), an auxiliary structure, an adjusting structure and a protective structure, wherein a display screen (2) is fixed inside the display board (1);

the auxiliary structure comprises writing boards (4), a placing box (3) is fixed on the rear side of the display board (1), the writing boards (4) are symmetrically arranged in the placing box (3) in a sliding mode, moving grooves (6) matched with the writing boards (4) are formed in the two sides of the placing box (3), limiting boards (7) are fixed at the ends of the writing boards (4) in the placing box (3), limiting blocks (8) are clamped at the rear sides of the two limiting boards (7), connecting pull rods (10) are fixed at the rear ends of the two limiting blocks (8), the connecting pull rods (10) extend to the outer side of the placing box (3), and first springs (9) are symmetrically fixed between the limiting blocks (8) and the rear side in the placing box (3);

the adjusting structure comprises a supporting bottom plate (13), an adjusting loop bar (11) is fixed at the bottom end of the display board (1), an adjusting screw rod (12) is connected inside the bottom end of the adjusting loop bar (11) through a thread groove, and the supporting bottom plate (13) is fixed at the bottom end of the adjusting screw rod (12);

protective structure includes protection cloth (18), show board (1) front side one end is fixed with receiver (16), and receiver (16) is inside to be connected with axis of rotation (17) through the bearing, the winding has protection cloth (18) on axis of rotation (17), and protection cloth (18) extend to receiver (16) one end in the outside is fixed with gag lever post (19), the symmetry is fixed with the fixed lantern ring (20) on gag lever post (19), show board (1) front side other end is fixed with dead lever (21), all be fixed with connecting plate (22) on protection cloth (18) the axis of rotation (17) of going up the lower extreme, all overlap on axis of rotation (17) between connecting plate (22) and receiver (16) and be equipped with second spring (23), and second spring (23) both ends all fix respectively on connecting plate (22) and receiver (16).

2. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: writing board (4) extend to the one end of placing the case (3) outside and have all seted up arc draw groove (5), the width of limiting plate (7) all is less than the width of activity groove (6).

3. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: limiting plate (7) rear side all seted up with stopper (8) complex draw-in groove, stopper (8) all set up to horizontal "V" shape of placing.

4. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: the connecting pull rod (10) is transversely arranged in a U shape, and the rear end of the placing box (3) is provided with a moving hole matched with the connecting pull rod (10).

5. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: a handle (15) is fixed on one side of the top end of the supporting base plate (13), a spongy cushion is glued on the outer surface of the handle (15), and a non-slip mat (14) is glued on the bottom end of the supporting base plate (13).

6. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: the utility model discloses a show board, including receiver (16), gag lever post (19), display screen (2) side to the length of show board (1), receiver (16) side all seted up with protection cloth (18) complex shifting chute, the length sum of receiver (16) and gag lever post (19) is less than the length of display screen (2) side to the side of show board (1).

7. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: the overall length of the protective cloth (18) is larger than that of the display board (1), and the height of the protective cloth (18) is larger than that of the display screen (2).

8. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 6, wherein: the length of gag lever post (19) is greater than the length of shifting chute, the length of gag lever post (19) is less than the length of receiver (16).

9. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: the fixing rods (21) are all arranged in an L shape in a transverse mode, and the length of each fixing rod (21) is smaller than the diameter of the fixing sleeve ring (20).

10. The multimedia presentation apparatus for middle-aged mathematics as claimed in claim 1, wherein: the diameter width of connecting plate (22) is less than the inside diameter width of receiver (16), the diameter width of connecting plate (22) is greater than the diameter width of protection cloth (18).